After finding all the music sheets, you can read each of the bolded words to spell out "First Words On The Sheets Are True Message". Hopefully you kept a note of each sheet, but if not, you'll find ...

This huge 1.5 million-ha park has successive tiers of vegetation rising from 150 to 4,200 m above sea-level. The tropical forest in the lower tiers is home to an unrivalled variety of animal and plant ...